[MacPorts] #53943: cvs-fast-export & asciidoc: build error due to missing DTDs

[MacPorts]

#53943: cvs-fast-export & asciidoc: build error due to missing DTDs
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  Reporter:  mojca                     |      Owner:  neverpanic
      Type:  defect                    |     Status:  new
  Priority:  Normal                    |  Milestone:
 Component:  ports                     |    Version:
Resolution:                            |   Keywords:
      Port:  cvs-fast-export asciidoc  |
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Comment (by mojca):

 I have a problem reliably reproducing this on my machine (short of
 deactivating everything), so I blindly added another build dependency,
 let's see what happens.

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Ticket URL: <https://trac.macports.org/ticket/53943#comment:4>
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